The Chicago Pneumatic CP42 Series is comprised of ergnonomic squeezers and lightweight rivet hammers that are ideal for providing optimal riveting solutions for maximum productivity. The CP42 series includes six models of squeezers and seven models of compact rivet hammers. The squeezers are silent (as lows as 72 dB) with a minimum vibration of less than 2,5 m/s2. A rotating air inlet provides added flexibility so the user can easily maneuver the squeezer into the right position. The rivet hammers are available from 1X to 9X and can adeptly handle all aluminum rivets up to 3/8" in size.